Competition Law and Antitrust Implications of Attention Economies

1. Introduction

The attention economy describes markets in which firms compete to capture, retain, measure, and monetize users’ limited attention. Search engines, social-media platforms, video-sharing services, online marketplaces, news platforms, gaming services, app stores, and advertising intermediaries all operate partly within this economic structure.

Unlike conventional markets where consumers primarily pay money for a product, many attention-economy services are offered at zero monetary price. Users instead provide valuable attention, behavioural data, engagement, and advertising opportunities. Platforms then monetize those resources through targeted advertising, subscriptions, commissions, transactions, or data-driven commercial services.

Competition law therefore has to consider not merely the price paid by consumers, but also:

control over user attention;

time spent on a platform;

user engagement and switching costs;

accumulation of behavioural data;

network effects;

recommendation and ranking algorithms;

advertising inventory;

access to advertisers and publishers;

self-preferencing;

interoperability;

acquisitions of emerging competitors;

exclusionary platform rules; and

the ability to leverage dominance from one digital market into another.

The central competition-law problem is that control over attention can become control over an important input into digital advertising and other adjacent markets.

2. Meaning of the Attention Economy

In traditional markets, competition can often be measured through price, quantity, output, and market share.

In an attention economy, important competitive variables include:

Users → attention → engagement → behavioural data → advertising inventory → monetisation

For example, a social-media platform may provide a free service to users. The platform attracts users with content and recommendation algorithms. Greater user engagement produces more advertising impressions and more behavioural information. That information can improve targeting, which increases the commercial value of the platform.

This creates a feedback loop:

More users → more attention → more data → better targeting → more advertisers → more revenue → greater ability to invest → more users.

Competition law becomes concerned when a dominant firm can use this feedback loop to exclude rivals rather than merely compete on the merits.

3. Why Attention Is Relevant to Competition Law

A. Attention can constitute an economically valuable input

Attention itself may not always constitute a conventional relevant market. Nevertheless, it can be economically significant.

Advertisers compete for:

impressions;

clicks;

viewing time;

search queries;

conversions;

consumer interactions;

purchasing behaviour; and

identifiable consumer segments.

A platform controlling a large volume of consumer attention can therefore possess significant bargaining power over advertisers and publishers.

B. Zero-price services do not eliminate competition concerns

Many digital platforms charge users no monetary price.

A traditional price-based analysis might therefore underestimate competitive harm.

Competition authorities can instead examine:

quality;

privacy;

advertising intensity;

data collection;

user choice;

interoperability;

innovation;

ranking neutrality;

switching costs; and

restrictions imposed on business users.

This is particularly important where users "pay" through their attention and personal data.

4. Relevant Market Definition

Attention-economy cases create difficult market-definition questions.

A platform may simultaneously operate in several connected markets:

social networking;

online video;

search;

digital advertising;

advertising intermediation;

app distribution;

online marketplaces;

content distribution; and

data-related services.

A single platform can therefore occupy different positions on different sides of a multi-sided market.

For example:

Users
↓
Social/search/video platform
↓
Advertisers

The platform may provide services to users at zero monetary price while charging advertisers.

Consequently, competition authorities may analyse both sides of the platform and the relationships between them.

5. Network Effects and Attention Concentration

Attention markets frequently exhibit strong network effects.

A platform with many users becomes attractive to:

advertisers;

creators;

publishers;

developers;

merchants; and

other users.

This can create a reinforcing cycle.

Direct network effects

More users can increase the usefulness of the service.

Indirect network effects

More users attract advertisers and content providers, while more advertisers and content can increase the platform's attractiveness to users.

Data-driven network effects

More engagement generates more data, which can improve:

recommendations;

advertising targeting;

search results;

fraud detection;

content ranking; and

personalization.

A dominant platform may therefore become difficult to challenge even where a technically viable rival exists.

6. Recommendation Algorithms and Competition

Recommendation algorithms are particularly important in attention economies.

Platforms determine which:

videos users see;

posts appear in feeds;

products receive prominence;

search results are displayed;

advertisements are presented;

news articles are recommended.

An algorithm can therefore function as a gatekeeper for attention.

Competition concerns may arise where a dominant platform:

systematically prefers its own services;

disadvantages competing suppliers;

manipulates rankings;

uses commercially sensitive data from rivals;

restricts interoperability;

makes rival services difficult to discover; or

conditions access to consumers upon accepting exclusionary terms.

The legal issue is not simply that an algorithm produces a particular outcome. The crucial question is whether the conduct constitutes an exclusionary or exploitative practice prohibited by the applicable competition regime.

7. Self-Preferencing

Self-preferencing occurs when a platform gives preferential treatment to its own products or services.

This is especially significant in attention markets because prominence itself can be commercially valuable.

A platform does not necessarily need to exclude a competitor completely. It may instead reduce the competitor's visibility.

The European Commission's Google Shopping decision provides an important example. The Commission found that Google had abused its dominant position in general search by favouring its own comparison-shopping service in search results. The Commission considered the resulting traffic effects and foreclosure of competing comparison-shopping services relevant to the assessment. (EUR-Lex)

This principle is particularly relevant to attention markets because search ranking determines which competing services receive users' scarce attention.

8. Digital Advertising and Attention

Advertising markets are at the centre of the attention economy.

A simplified structure is:

Users → platform → advertising inventory → advertisers

But modern advertising can involve multiple intermediaries:

Advertiser → demand-side platform → ad exchange → publisher/ad server → user

A company controlling several levels of this chain may potentially obtain an ability to:

favour its own advertising technology;

restrict rivals' access to data;

manipulate auction conditions;

discriminate between competing intermediaries;

increase advertising costs;

reduce publisher revenue; or

make competing advertising platforms less attractive.

The contemporary U.S. Google ad-tech litigation illustrates the importance of these issues. In 2025, a federal court found Google liable for monopolization in parts of the ad-tech market, and in September 2026 the court ordered significant behavioural changes concerning ad auctions and relationships among Google's advertising products. Google has indicated that it will appeal aspects of the liability ruling. (Reuters)

9. Data as a Competitive Advantage

Attention platforms often accumulate enormous quantities of behavioural information.

Relevant information may include:

search histories;

viewing histories;

clicks;

purchases;

location information;

social connections;

interests;

device information;

engagement patterns; and

advertising responses.

The accumulation of data can produce competitive advantages because it may improve targeting and personalization.

A competition-law inquiry can therefore ask:

Does a dominant platform's access to data create or strengthen barriers to entry or facilitate exclusionary conduct?

The European Commission's investigation into Google's display advertising practices, for example, examined concerns involving Google's use of data obtained from services in which it was dominant and the treatment of competing advertising intermediaries. (EUR-Lex)

10. Data Combination and the Attention Economy

The combination of data across different services can strengthen a platform's advertising capabilities.

This issue has become especially visible in European Union digital regulation.

In 2025, the European Commission found Meta in breach of the Digital Markets Act concerning its "consent or pay" model, focusing on the combination of personal data from Meta's services for personalised advertising. (EUR-Lex)

This demonstrates an important development:

Competition regulation is increasingly examining not only monetary prices but also the conditions under which platforms obtain and combine data used for monetisation.

11. Attention Markets and Consumer Lock-In

Users can become locked into a platform because of:

accumulated social connections;

personal profiles;

historical content;

playlists;

followers;

reputation;

saved data;

purchased applications;

subscriptions;

creator audiences; and

familiarity with the platform's interface.

Switching may therefore impose significant non-monetary costs.

This can make an apparently free service economically difficult to leave.

Competition law may consequently examine whether a dominant firm uses contractual, technical, or behavioural mechanisms to make switching artificially difficult.

12. Acquisitions of Emerging Attention Rivals

One of the most significant antitrust issues concerns acquisitions.

A large platform may acquire an emerging competitor before it becomes a major competitive threat.

The classic contemporary example is FTC v. Facebook/Meta.

The FTC alleged that Facebook maintained its personal-social-networking monopoly through a strategy that included acquiring Instagram and WhatsApp and imposing certain restrictive conditions on developers. (Federal Trade Commission)

The case illustrates the "killer acquisition" problem in attention markets.

A small platform may have:

relatively little revenue;

few employees;

modest market share;

but nevertheless possess substantial competitive potential because it attracts user attention rapidly.

Traditional merger analysis based primarily on current revenue can therefore miss potential competition.

The FTC's litigation against Meta has also evolved over time: the district court ruled for Meta in November 2025, and the FTC appealed in January 2026. (Federal Trade Commission)

13. Six Important Case Laws

1. Google Search (Shopping) — European Commission

Case: Google Search (Shopping), Case AT.39740

Facts

The European Commission investigated Google's treatment of comparison-shopping services in its general search results.

The Commission concluded that Google had used its dominance in general search to favour its own comparison-shopping service.

Competition issue

The case concerned:

leveraging;

self-preferencing;

search ranking;

traffic foreclosure; and

exclusion of rival comparison-shopping services.

Relevance to attention economies

Search ranking determines the allocation of user attention.

Even where rival services technically remain available, systematic reduction in their visibility can substantially affect their ability to compete.

Principle

A dominant platform's control over an important gateway to users can make ranking and visibility commercially significant competitive parameters.

2. Google Android — European Commission

Case: Google Android, Case AT.40099

Facts

The European Commission examined several contractual arrangements involving Google's Android ecosystem, including restrictions relating to app distribution and competing search services.

Competition issues

The case involved:

tying;

exclusivity;

pre-installation;

default settings;

mobile ecosystems; and

barriers to competing services.

Attention-economy relevance

Defaults are extremely important where users have limited attention.

A service placed:

on the first screen;

as the default search engine;

as the default browser; or

as the default application

has a significant advantage in obtaining user engagement.

Thus, competition for attention may occur through default positioning, not merely through product quality.

3. Google AdSense — European Commission

Case: Google AdSense for Search, Case AT.40411

Facts

The Commission examined contractual restrictions used by Google concerning third-party websites displaying search advertisements.

Competition issues

The investigation concerned restrictions that could prevent competing search-advertising providers from obtaining sufficient access to publisher websites.

Attention-economy significance

Advertising intermediaries compete for access to the places where consumer attention is monetized.

If a dominant intermediary controls access between:

publishers → advertising demand → consumers

contractual restrictions can potentially reinforce its position.

Principle

Control over an important advertising intermediation layer can have effects beyond the immediate contractual relationship.

4. FTC v. Facebook / Meta

Case: Federal Trade Commission v. Facebook, Inc. / Meta Platforms, Inc.

Facts

The FTC alleged that Facebook maintained its personal social-networking monopoly through acquisitions including Instagram and WhatsApp and through certain policies concerning developers and access to Facebook's platform.

The FTC's case remains subject to appellate proceedings after the district court's 2025 judgment in Meta's favour. (Federal Trade Commission)

Competition issues

The case raises:

monopolization;

acquisitions of potential competitors;

network effects;

platform ecosystems;

API access;

innovation competition; and

user attention.

Attention-economy significance

Social networking is fundamentally an attention market.

A platform's competitive position can depend on:

active users;

time spent;

social connections;

creators;

content;

advertising data; and

engagement.

Consequently, eliminating a developing rival may have competitive consequences even if the acquired firm has relatively limited current revenue.

5. Google Ad-Tech Litigation — United States

Case: United States and States v. Google LLC, online advertising technology litigation

Facts

The U.S. government challenged Google's conduct in digital advertising technology.

The litigation addressed Google's position across important parts of the ad-tech ecosystem.

The court found Google liable in 2025 for monopolization in relevant ad-tech markets. In 2026, the remedies proceedings produced requirements concerning auction practices, product relationships, and competitive access. Google is appealing aspects of the liability determination. (Reuters)

Competition issues

The case raises:

vertical integration;

monopolization;

conflicts of interest;

ad auctions;

self-preferencing;

data advantages; and

publisher access.

Attention-economy significance

Advertising is one of the principal mechanisms by which user attention becomes revenue.

Control over ad-tech infrastructure can therefore influence how the economic value of attention is distributed among:

users;

publishers;

advertisers;

advertising intermediaries; and

platforms.

6. Meta — Digital Markets Act

Case: Meta, DMA Article 5(2) proceedings

The European Commission's 2025 decision concerned Meta's handling of personal data for personalised advertising. The Commission found that Meta's model did not comply with the DMA requirement concerning the combination of personal data and imposed a fine of €200 million. (EUR-Lex)

Competition relevance

The case is significant because data can strengthen a platform's advertising position.

The competitive chain can be expressed as:

More user data → more precise targeting → more valuable advertising → stronger monetisation → greater platform resources → stronger competitive position.

The case therefore demonstrates how data accumulation and attention monetisation can become interconnected competition concerns.

14. Additional Important Case: Google Search and Advertising

The broader Google search cases also demonstrate how control over consumer attention can facilitate leveraging.

Google's search service acts as a gateway through which users discover:

products;

businesses;

news;

travel services;

applications;

advertisements; and

competing platforms.

The European Commission has continued to address self-preferencing and steering issues under the DMA. In July 2026, it fined Google €460 million concerning self-preferencing in Search and €430 million concerning restrictions on steering users toward alternative purchasing channels on Google Play. (Digital Markets Act (DMA))

These developments show the increasing movement from traditional abuse-of-dominance litigation toward ex ante regulation of digital gatekeepers.

15. Tying and Bundling

Attention platforms may tie different services together.

Examples include:

search + browser;

operating system + search;

app store + payment service;

social network + advertising service;

marketplace + logistics;

video platform + recommendation system.

Tying can be problematic where a dominant service uses its position in one market to disadvantage competitors in another.

The competition analysis generally asks:

Are there separate products or services?

Does the firm possess dominance in the tying market?

Is access to the tied product conditional?

Does the practice foreclose rivals?

Are there objective justifications?

Is the foreclosure substantial?

16. Exclusivity and Attention

Exclusive arrangements can be particularly powerful where a platform is an important source of consumer attention.

For example:

Dominant platform → exclusive distribution → competing platform loses access to users → reduced engagement → reduced advertising value → weaker ability to attract creators and advertisers.

This can create a cumulative foreclosure effect.

However, exclusivity is not automatically unlawful. Competition law generally requires examination of market power, duration, coverage, foreclosure effects, contractual structure, and possible efficiencies.

17. Parity Clauses and Attention

Most-favoured-nation or parity clauses may also affect attention markets.

For example, a platform might require a merchant or content provider not to offer better terms through another platform.

This can reduce the incentive for rival platforms to compete aggressively on:

price;

commission;

quality;

advertising;

consumer benefits.

In attention markets, the resulting reduction in platform competition can indirectly affect how businesses compete for users' attention.

18. Algorithmic Collusion

Another emerging issue is algorithmic coordination.

Suppose competing platforms use pricing or advertising algorithms capable of rapidly observing competitors' conduct.

Potential concerns include:

coordinated prices;

coordinated advertising rates;

synchronized auction behaviour;

reduced promotional competition;

common algorithmic providers; and

information exchange.

Competition law must distinguish between:

independent algorithmic adaptation

and

algorithmically facilitated coordination arising from an agreement or concerted practice.

The existence of similar algorithmic outcomes alone does not necessarily establish an unlawful cartel.

19. Personalised Pricing

Attention platforms possess extensive behavioural data that can potentially support differentiated pricing.

Possible examples include:

different offers to different consumers;

personalised advertising prices;

targeted discounts;

personalised subscription offers;

differentiated promotional incentives.

Competition concerns can arise if a dominant platform uses its information advantage to discriminate in a way that excludes rivals or exploits consumers.

However, personalised pricing is not inherently an antitrust violation.

The relevant questions concern:

market power;

discriminatory mechanism;

competitive effects;

consumer harm;

exclusion;

data practices; and

applicable statutory provisions.

20. Quality Competition

Attention-economy competition cannot be measured solely through price.

Important dimensions include:

Privacy

Does the platform require extensive data collection?

Advertising load

How many advertisements are presented?

User experience

How intrusive are advertisements and recommendations?

Content diversity

Does the platform provide diverse content?

Choice

Can consumers select competing services?

Interoperability

Can users transfer their data or communicate across platforms?

Innovation

Can new platforms enter and develop competing services?

These factors can be treated as non-price dimensions of competition.

21. Consumer Welfare and Attention

The consumer-welfare analysis in attention markets may include:

higher advertising intensity;

reduced privacy;

reduced choice;

lower quality;

reduced innovation;

increased switching costs;

reduced content diversity;

manipulation of rankings;

exclusion of competing services.

A zero monetary price therefore does not necessarily mean that consumers experience no competitive harm.

22. Merger Control in Attention Markets

Traditional merger thresholds based on turnover can be problematic where a rapidly growing digital platform has:

low revenue;

millions of users;

high engagement;

valuable data;

rapidly increasing market share.

A small platform may nevertheless represent significant potential competition.

Merger authorities can therefore consider:

user numbers;

engagement;

growth rates;

data assets;

innovation pipelines;

nascent competition;

switching behaviour;

network effects; and

potential future rivalry.

The Meta/Instagram and Meta/WhatsApp litigation illustrates why acquisitions of digital platforms can raise competition concerns beyond conventional turnover-based analysis. (Federal Trade Commission)

23. India: Competition-Law Implications

Under India's Competition Act, 2002, attention-economy conduct can potentially implicate:

Section 3

Anti-competitive agreements, including:

horizontal coordination;

vertical restrictions;

exclusive arrangements;

tying;

resale restrictions; and

other arrangements producing appreciable adverse effects on competition.

Section 4

Abuse of dominant position, including:

unfair or discriminatory conditions;

unfair or discriminatory prices;

limiting markets;

denial of market access;

tying;

leveraging dominance into another market.

Sections 5 and 6

Merger control is particularly relevant to digital acquisitions and combinations involving platforms with significant data, users, and network effects.

The Indian competition framework therefore has considerable relevance to attention-economy business models.

24. Digital Markets and Ex-Ante Regulation

A major development is the shift from relying exclusively on traditional abuse-of-dominance cases toward ex-ante digital regulation.

The EU Digital Markets Act is a prominent example.

The European Commission designated major technology companies as gatekeepers for specified core platform services. (Digital Markets Act (DMA))

The DMA addresses issues such as:

self-preferencing;

interoperability;

steering;

data combination;

user choice;

app-store restrictions; and

gatekeeper obligations.

This is significant because traditional antitrust proceedings can take years, while digital markets may change extremely rapidly.

25. Attention as a Bottleneck Resource

A central economic characteristic of attention markets is scarcity.

There are billions of users but only a finite amount of:

time;

cognitive capacity;

viewing time;

search activity;

purchasing attention.

Consequently, platforms compete to become the gateway through which consumers allocate attention.

A dominant platform controlling this gateway can potentially influence competition in adjacent markets.

For example:

Search dominance
↓
Controls visibility
↓
Controls traffic
↓
Influences merchants and publishers
↓
Influences advertising revenues

Similarly:

Social-network dominance
↓
Controls user engagement
↓
Controls advertising inventory
↓
Controls access to advertisers
↓
Strengthens platform monetisation.

26. Foreclosure Theory

The principal antitrust concern can be expressed through a simplified model:

Dominant platform + control over attention + exclusionary conduct + significant foreclosure = potential competition-law violation

Foreclosure can occur through:

ranking discrimination;

self-preferencing;

exclusive contracts;

tying;

interoperability restrictions;

discriminatory API access;

data restrictions;

acquisition of potential rivals;

default settings;

app-store restrictions;

advertising intermediation restrictions.

The presence of these practices alone does not establish illegality. Their competitive effects and the relevant statutory requirements must be examined.

27. Barriers to Entry

Attention markets can have unusually high entry barriers.

A new platform may need simultaneously to obtain:

users;

content;

creators;

advertisers;

data;

technological infrastructure;

trust;

recommendation capabilities; and

sufficient engagement.

This creates a chicken-and-egg problem.

Users may not join without content.

Creators may not join without users.

Advertisers may not join without users.

Users may not remain without advertisers or content.

A dominant platform can therefore benefit from self-reinforcing network effects.

28. The Role of Interoperability

Interoperability can reduce switching costs.

Potential mechanisms include:

data portability;

API access;

cross-platform communication;

interoperability between messaging services;

third-party access to platform functionality.

Competition concerns arise when a dominant platform restricts interoperability in a way that protects its market position.

The FTC's Meta case, for example, has involved allegations concerning restrictive API policies and their contribution to maintaining Facebook's position. (Federal Trade Commission)

29. Attention Economy and Innovation

Competition authorities must distinguish between:

Legitimate innovation

A platform improves its recommendation algorithm and attracts users because its product becomes better.

Potentially exclusionary innovation

A platform changes its technology primarily to prevent rivals from interoperating or reaching consumers.

This distinction is particularly important because algorithmic changes are often technically complex and can have legitimate efficiency explanations.

30. Possible Competition Remedies

Where competition authorities establish an infringement, potential remedies can include:

Structural remedies

divestiture;

separation of business units;

restrictions on acquisitions.

Behavioural remedies

non-discrimination obligations;

interoperability;

data-access requirements;

prohibition of self-preferencing;

transparency requirements;

restrictions on exclusivity.

Merger remedies

asset divestitures;

licensing;

access commitments;

data separation;

interoperability commitments.

Digital-market remedies

Modern regulation can additionally require:

user choice screens;

steering rights;

consent mechanisms;

data-use restrictions;

interoperability;

transparency.

31. Key Legal Issues in Attention Economies

32. Overall Legal Significance

The most important development in attention-economy antitrust is the movement away from the assumption that price is the only meaningful competitive variable.

Competition may instead occur over:

users;

time;

engagement;

data;

visibility;

advertising inventory;

creator participation;

rankings;

recommendations;

interoperability; and

access to digital audiences.

The Google Shopping litigation demonstrates the importance of control over visibility; the Meta litigation illustrates concerns surrounding acquisitions of potential social-network competitors; the Google advertising litigation demonstrates the importance of control over advertising infrastructure; and the EU's DMA enforcement concerning Meta and Google demonstrates the growing significance of data combination, steering and self-preferencing in digital ecosystems. (EUR-Lex)

Conclusion

Attention economies create a distinctive competition-law environment in which consumer attention, behavioural data, algorithms, and network effects can function as economically significant competitive resources.

The principal antitrust question is not whether a company has attracted a large amount of attention. Success through superior products, innovation, or legitimate network effects is generally part of competition. The more difficult question is whether a dominant platform uses control over attention to exclude rivals, prevent entry, restrict consumer choice, or extend its power into related markets.

The major legal tools include abuse-of-dominance rules, merger control, anti-cartel provisions, vertical-restraint analysis, and increasingly ex-ante digital-platform regulation. The emerging case law therefore suggests that competition authorities will increasingly examine not simply who controls a product or service, but who controls the gateway through which consumers discover, engage with, and transact with competing products and services.